Item distribution, internal consistency, and structural validity of the German version of the DEMQOL and DEMQOL-proxy.

Background: Accurate assessment of health-related quality of life as an endpoint in intervention studies is a major challenge in dementia research. The DEMQOL (29 items) and the proxy version (32 items), which is partly based on the DEMQOL, are internationally used instruments. To date, there is no information on the structural validity, item distribution, or internal consistency for the German language version of these questionnaires.

Item distribution and inter-rater reliability of the German version of the quality of life in Alzheimer's disease scale (QoL-AD) proxy for people with dementia living in nursing homes.

Background: The Quality of Life in Alzheimer's disease scale (QoL-AD) is a widely used Health Related Quality of Life (HRQoL) instrument. However, studies investigating the instrument's inter-rater reliability (IRR) are missing. This study aimed to determine the item distribution and IRR of the German proxy version of the QoL-AD (13 Items) and a nursing home-specific instrument version (QoL-AD NH, 15 Items).

Dementia care mapping in nursing homes: effects on caregiver attitudes, job satisfaction, and burnout. A quasi-experimental trial.

Background: The Dementia Care Mapping (DCM) method is an internationally recognized complex intervention in dementia research and care for implementing person-centered care. The Leben-QD II trial aimed to evaluate the effectiveness of DCM with regard to caregivers.

Methods: The nine participating nursing home units were allocated to three groups: (1) DCM method experienced ≥ 1 year, (2) DCM newly introduced during this trial, and (3) regular rating of residents' quality of life (control group).

[Assessment of the significance and the requirements of medical postdoctoral lecture qualifications in Germany by the assessment committees].

Objective: The postdoctoral medical lecture qualification (Habilitation) represents the highest academic qualification in Germany, which is successfully completed by approximately 850 candidates in medicine and health sciences per year. However, there is only a limited number of respective academic positions available. In addition, structures in education and society have changed over the last years, challenging the importance of this specific German qualification.

Item distribution, internal consistency and inter-rater reliability of the German version of the QUALIDEM for people with mild to severe and very severe dementia.

Background: The QUALIDEM is a dementia-specific Quality of life (Qol) instrument that is recommended for longitudinal studies and advanced stages of dementia. Our study aimed to develop a user guide for the German version of the QUALIDEM and to determine the item distribution, internal consistency and inter-rater reliability (IRR) of the German QUALIDEM.

Methods: A user guide was developed based on cognitive interviews with ten professional caregivers and a focus group with six professional caregivers.

[Internal consistency and construct validity of the Quality of Life in Alzheimer's Disease (QoL-AD) proxy – a secondary data analysis].

Background: The maintenance and promotion of Quality of Life (QoL) of people with dementia is a major outcome in intervention studies and health care. The Quality of Life Alzheimer's Disease (QoL-AD) is an internationally recommended QoL measurement also available in German language. Until now, only a few results on the psychometric properties of the German QoL-AD were available.

People with dementia in nursing home research: a methodological review of the definition and identification of the study population.

Background: There are various definitions and diagnostic criteria for dementia, leading to discrepancies in case ascertainment in both clinical practice and research. We reviewed the different definitions, approaches and measurements used to operationalize dementia in health care studies in German nursing homes with the aim of discussing the implications of different approaches.

Methods: We conducted a systematic search of the MEDLINE and CINAHL databases to identify pre-2016 studies conducted in German nursing homes that focused on residents with dementia or cognitive impairment.

Linguistic validation and reliability properties are weak investigated of most dementia-specific quality of life measurements-a systematic review.

Objective: For people with dementia, the concept of quality of life (Qol) reflects the disease's impact on the whole person. Thus, Qol is an increasingly used outcome measure in dementia research. This systematic review was performed to identify available dementia-specific Qol measurements and to assess the quality of linguistic validations and reliability studies of these measurements (PROSPERO 2013: CRD42014008725).

Dementia care mapping: effects on residents' quality of life and challenging behavior in German nursing homes. A quasi-experimental trial.

Background: Person-centered care (PCC) is a widely recognized concept in dementia research and care. Dementia Care Mapping (DCM) is a method for implementing PCC. Prior studies have yielded heterogeneous results regarding the effectiveness of DCM for people with dementia (PwD).

Measuring the quality of life in mild to very severe dementia: testing the inter-rater and intra-rater reliability of the German version of the QUALIDEM.

Background: Quality of life (Qol) is an increasingly used outcome measure in dementia research. The QUALIDEM is a dementia-specific and proxy-rated Qol instrument. We aimed to determine the inter-rater and intra-rater reliability in residents with dementia in German nursing homes.

Longitudinal evaluation of dementia care in German nursing homes: the "DemenzMonitor" study protocol.

Background: In Germany, the number of people with dementia living in nursing homes is rapidly increasing. Providing adequate care for their special needs is a challenge for institutions and their staff members. Because of the growing number of people with dementia, changes to the conceptual orientation of nursing homes have occurred.